Pump.



'PATENTED MAY 5,1908.

H. G. RIBBENAGK.

PUMP.

APPLICATION FILED SBPT.14.1907.

2 SHEETSSEEET 1.

in nu H ll Swuentoz M Witnesses W 3 MW HENRY G. RIEBENACK, OFPHILADELPHIA, PENNSYLVANIA.

PUMP.

Specification of Letters Patent.

Patented May 5, 1908.

Application filed September 14, 1907. Serial N 0. 392,866.

To all whom it may concern:

Be it known that I, HENRY G. RIEBENAOK, a citizen of the United States,residing in the city and county of Philadelphia, State of Pennsylvania,have invented a new and use ful Pump, of which the following is aspecification.

The object of my invention is to provide a novel construction of a pumpparticularly suited for use with dust laden air and having pistons ofrubber or other suitable resilient material and guiding piston heads.

A further purpose of my invention is to provide, in a vacuum pump, apiston chamer having concave outwardly facing walls and a piston offlexible material guided by the piston head in its inner and outer orextreme positions.

A further purpose of my invention is to so arrange a vacuum pump that aflexible piston operates toward and from a concave outwardly facingpiston chamber having inlet and exhaust openings from said chamber andto also supply guides for the flexible piston.

For the purpose of illustrating my invention, I have shown in theaccompanying drawings, one form of a device since this embodiment bestillustrates the principles thereof and gives reliable and satisfactoryresults in practice, although it is to be understood that the variousinstrumentalities of which my invention consists can be variouslyarranged and organized and that my invention is not limited to theprecise arrangement and organization of these instrumentalities asherein shown.

Figure 1 represents a vertical sectional view partly in elevation, thesection being throu h the center of the pistons of a pump embodying myinvention. Fig. 2 represents a broken end elevation of Fig. 1. Fig. 3represents, in broken lan view, a portion of Fig. 1

Similar numera s of reference indicate cor responding parts in thefigures.

Referring to the drawings, 1 designates any suitable framework, uponwhich I support my novel construction of a pump, said ramework beingpreferably elevated to give room for the mechanism of the pum beneathit, but this mechanism may evldent y be corres ondingly depressed withreference to the su ace considered if desired.

The framework 1 supports a plate 2, which may also be considered as aframe member,

but which in the form which I have illusv trated is made integral withand in this manner carries piston chambers 3 and 4, which are concaveand outwardly faced at 5, which have depressions or ofisets forming thechain here 6, in each of whose base walls are a plurality of seats forvalve parts for my mechanism the valves and seats thus being close toeach other on said chambers 6 for quick 0 eration relatively to eachother Within t 1e seats thus formed, I provide the inlet or suctionpipes 7 and the outlet or discharge openings 8, these pipes and o eningscommunicating respectively with tie main pumping or suction pipe 9 andthe water tank 10.

The inlet 7 and exhaust 8 are controlled by valves 11 and 12respectively, the valve 11 being preferably of an ordinary flap or trapform, While the valve 12 is preferably of di rect vertical movement typeguided in any suitable manner as by the stem 13, working within thesupports 14 and normally held in upward position by the spring 15 whichpresses against a nut or projection 16 upon the upper end of the stem 13and which at its other end presses against one of the supports 14. Ipreferably exhaust directly into a pipe 17, whose terminal 18 is placedbelow the surface of a supply of water 19 within the tank 10.

Since my device is primarily intended for exhaust cleaning purposes inwhich dust and dirt are gathered within an air carrier which may beattached to the suction 9 and pumped thereby, it is quite desirable toexhaust this air through the water, in order that the water may take upthe dust and permit the cleansed air to escape to the atmosphere freefrom the contamination of the dust and dirt with which it was originallyladen.

The piston chambers 3 and 4 are used in connection with flexible pistons20, which are secured in position by an annular plate 21, secured bybolts or other fastening devices 22, the latter extending throughapertures 23 in said plates. The piston 20 must not only be preferablyflexible, but is preferably also elastic and is pressed to position atthe downward end of the stroke by a piston head 24 conforming to theshape of the cooperating portions of the parts 3 and 4. Since thesespherical portions 24 do not quite make contact with the correspondingportions of 3 and 4, they must preferably be formed upon substantiallycorresponding or similar radii. Said piston heads 24 are carried by anysuitmounted upon disks 30, said cranks -,being mounted upon a shaft orshafts 31 which are driven by any suitable means such as the pulley 32.During the operation of pumping, the heads 24 press the flexible pistonsinto the position shown in the right hand of Fig. 1 thereby expellingthe air from the piston chamber thereof. Upon the upward stroke theauxiliary piston head 33 which is also preferably of curved shape butsmall enough to pass within the opening 6, stretches the flexible pistonto the position shown in the left hand portion of Fig. 1 therebyinsuring full extension thereof and a corresponding complete filling ofthe piston chamber with air upon this limit of the stroke the same beingeffectively discharged with the dust, etc. into the adjacent chamber 3or 4 and from thence forcibly directed to the dis charge valve 12.

The flexible pistons are thus alternately moved between the limits shownin the two positions of Fig. 1 with consequent filling and exhaust ofthe piston chambers and pumping action thereof and as both the pistonand valve mechanisms are constructed in substantially the same manner, Ihave deemed it unnecessary to describe them in further detail.

It will be seen that the members 24 and 33 are reversely curved and areof such a curvature as to coact with the curvatures on which the pistonchambers are formed, in that they preferably are portions of sphereshaving radii differing from the radii of the spheres of the pistonchambers preferably by the thickness of the pistons 20.

It will be apparent that while I have described my suction pipe 9 asbeing adapted to be connected to a flexible hose having a dustcollecting device thereon, I do not desire to be limited to this aplication of my invention, as the same can e ut to numerous other usesas is evident. t will also be apparent that the curvature of the parts24 and 33 can be varied and that the pistons or diaphragms 20 can beconnected to their operating devices by other means than those shownwithout departing from the spirit of my invention. It will also be aparent that the precise construction of the va ves 11 and 12 and themanner of mounting and o erating the same may bevaried by those s 'lledin the art, and that the manner of trapping and purifyin the dust ladendischarge may also e varied if desired.

Having thus described my invention, what I claim as new and desire tosecure by Letters Patent, is:

1. In a pump of the character described, a piston chamber, a flexiblepiston for said chamber, means for actuating said piston, an

offset in a wall of said ehamber, a plurality of valve seats occupyingsaid wall close to each other, and suction and exhaust valves fitted tosaid seats.

2. In a pump of the character stated, a piston chamber, a flexiblepiston for said chamber, means for actuating said iston, an offset in awall of said chamber, a p urality of valve seats occupying said wallclose to each other, suction and exhaust valves fitted to said seats, apipe leading from the seat of the exhaust valve, and a tank into whichsaid pipe dips.

3. In a device of the character described, a frame plate depressed toform cooperating piston chambers, valve chambers therefor depressed fromthe bottom of said chambers, vertically movable suction and ex-- haustvalves in said valve chambers, flexible pistons for said pistonchambers, and means for moving said exible pistons into and out of saidchambers.

. 4. In a device of the character described, a frame plate depressed toform a piston chamber, a valve chamber therefor depressed from thebottom of said chambers, vertically movable suction and exhaust valvesin said valve chambers, a flexible piston having its annular edgessecured to said frame, a piston head upon the opposite side of saidiston from said piston chamber, a piston hea upon the same side of saidpiston as the piston chamber and ada ted to ass within said valvechamber, an means or actuating said piston head.

5. In a device of the character described, a frame plate depressed toform a piston cham ber and further depressed to form a valve chambercentrally placed With respect to said piston chamber, a flexible pistonsecured to said frame about its depression, a piston head of lessdiameter than that of the piston chamber and of the diameter of thevalve chamber, a piston head upon the opposite side of the plston fromthe first named head, a water tank, a pi e extending downward thereinto,a vertica y movable exhaust valve in said valve chamber and openin intosaid pipe and means for actuating sai piston head.

6. In a device of the character stated, a supporting frame, a pistonchamber, a valve chamber depressed from the bottom and located belowsaid piston chamber and having suction and exhaust openings, avertically movable suction valve in said valve chamber, a verticallymovable independent dis charge valve in said valve chamber, a dust trapcontrolled by said suction valve and connected with said valve chamber,a discharge. pipe leading from said discharge valve to said trap, aflexible diaphragm hav ing its edges secured around said iston chamber,a rod assing through sai diaphragm, opposite y curved devices carried bysaid rod and located on opposite sides of said diaphragm, and means foractuating said rod.

7. In a device of the character stated, a supportin frame, a istonchamber, avalve chamber depressed rom the bottom of and located belowsaid iston chamber and havin suction and ex aust openings, a verticalymovable suction valve in said valve chamber, a vertically movableindependent discharge valve for said valve chamber, a discharge pipeleading from said discharge valve, a flexible diaphragm, an annular device securing the outer peri hery of said diaphragm in osition on saiframe, a rod passing throug said diaphragm, 0 positely curved devicescarried by said ro and located on opposite sides of said diaphragm,meansfor actuating said rod, a suction pi e leading to said suctionvalve, a Water tan and a pi e depending therein and connected With saivalve chamber and containing the discharge valve.

8. In a device of the character stated, a supporting frame, a pluralityof piston chambers, valve chambers depressed from the bottom of andlocated below said piston chambers having suction and exhaust openings,vertically movable suction and discharge valves in said valve chambers,said valves being movable independently of each other, Water tanks,discharge pipes leading from said discharge valves to sald tanks to nearthe bottom thereof, said ipes receiving said discharge valves, a plurity of flexible dia )hragnis having their edges secured to said frame,-a rod passing through each of said diaphragms, oppositely curved devicescarried by said rod and located on o posite sides of said diaphragms, acrank sha 't suitably supported, connections from said crank shaft tosaid rods, whereby the latter are alternately reciprocated, and aconnection from each of sald suction valves leading to a common suctionpipe,

HENRY e. RIE-BENAOK.

" Witnesses:

JOHN A. WIEDERSHEIM, O. D. McVAY.

